The new Zimbra Connector for BlackBerry Enterprise Server is available to download. This new version has many enhancements, including support for up to 250 provisioned Zimbra users.
Binary and Documents are located here.

Other major enhancements:

[29382] A copy of sent messages is now saved to the device’s Sent folder.

[37338] BES supports Outlook 2007 SP2

[37515] You can now give more meaningful names to the zdb files to make it easier to determine which zdb files belong to which user

[38118] To stabilize BES performance with multi-agent configuration, calendar conversion requests can now be serialized

[38178] Improved performance when Calendar items are synchronized from the device to ZCS